LOW1.8
ImageMagick before 7.1.2-32 and 6.9.13-57 contains a policy bypass vulnerability in LoadPolicyCache that silently skips security policy rules when policy.xml uses an alternate DOCTYPE. A valid DOCTYPE not ending in ']>' makes the parser consume the rest of the file, so no policy rules are applied and restricted operations become allowed.
CVSS 3.xMEDIUM 4.2
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:LCVSS 4.0LOW 1.8
CVSS:4.0/CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XReferences
- https://github.com/ImageMagick/ImageMagick
- https://github.com/ImageMagick/ImageMagick/blob/7.1.2-31/MagickCore/policy.c#L1138-L1145
- https://github.com/ImageMagick/ImageMagick/commit/1926ccf119141c26274c120d1899dffae19b0c71
- https://github.com/ImageMagick/ImageMagick/commit/399d4bd3b081f44c7fef78153f65e8cdebed9f1a
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-jjp4-3fwf-393j
- https://github.com/ImageMagick/ImageMagick6/commit/402ebc5353e569234908962cbdf451531ff66a57
- https://github.com/ImageMagick/ImageMagick6/commit/da6022b2efe6cce8a2fd8f9e51188a45a3b9d558
- https://www.vulncheck.com/advisories/imagemagick-before-7.1.2-32-and-6.9.13-57-security-policy-bypass-via-policy-xml-doctype